Hey,........

I want to thank everybody for responding.  !!!!

Looks like I can do what I need to.  

Nathan, I am curious about your bit-banged code.  What's that all about ?

Jon 

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jacarson@addcoinc.com
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> -----Original Message-----
> From: nathanw@MIT.EDU [mailto:nathanw@MIT.EDU]
> Sent: Wednesday, January 31, 2001 3:39 PM
> To: Jon Lindgren
> Cc: Jared D. McNeill; Carson, Jon A.; 'port-i386@netbsd.org'
> Subject: Re: Printer port access
> 
> 
> Jon Lindgren <jlindgren@slk.com> writes:
> 
> > On Wed, 31 Jan 2001, Jared D. McNeill wrote:
> > 
> > > You will need to include machine/sysarch.h and machine/pio.h
> > > 
> > > On i386, first call 'i386_iopl(3);', then you can use 
> inb(port) and
> > > outb(port, data). When you're done, call 'i386_iopl(0);'. 
> Don't forget to
> > > link the binary against libi386.
> > 
> > Just curious, but what is the machine independant way to do 
> this?  I've
> > seen references to bus_space and such, but never really 
> gotten the gist of
> > it.
> 
> There isn't a MI way to fiddle with the parallel port like this,
> though there is some Alpha support to do a similar gross hack.
> 
> I wrote a "bitbang mode" extension to the parallel port driver which
> would supply this, but people keep saying I should go look at the
> FreeBSD ppbus stuff instead, and I haven't gotten around to that.
> 
>         - Nathan
> 
>         
>